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Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
  • Copper-Nickel-Silicon Strip
  • Copper-Nickel-Silicon Strip

Copper-Nickel-Silicon Strip

C7025 is a precipitate reinforced alloy with high strength and medium conductivity, good formability and stress relaxation resistance. It is mainly used in various kinds of consumer electronic connectors, automotive connectors and high-speed connectors.

Copper-Nickel-Silicon Strip Certifications
  • ISO9001
  • ISO14001

Copper-Nickel-Silicon Strip Advantages

  • Cop-ni-si alloy has good resistance to high temperature softening and thermal stress relaxation, which can improve the reliability of devices at high temperature

  • Copper-nickel-silicon alloy has good surface quality and uniform precipitation phase dispersion, which can improve the electroplating quality of products in the subsequent process.

  • Copper-nickel-silicon alloy has good bending performance, which can meet the requirements of subsequent stamping.

Copper-Nickel-Silicon Strip Application Fields

  • Consumer Electronics DDR
    Consumer Electronics DDR
  • Consumer Electronics Type-c Cable End
    Consumer Electronics Type-c Cable End
  • Semiconductor Lead Frame
    Semiconductor Lead Frame
  • Automotive Terminal
    Automotive Terminal

Copper-Nickel-Silicon Strip Performance Parameter


Chemical Composition of C7025


The main elements

Cu

Ni

Si

Mg

Content / %

Rem.

2.2-4.2

0.25-1.2

0.05-1.3



Physical Properties of C7025


The density of

8.8

g/cm3

Conductivity @ 20 ℃

P 42

%IACS

Thermal conductivity @ 20 ℃

190

W/(m • K)

Specific heat capacity

0.39

J/g • K)

Poisson's ratio

0.33

-

Modulus of elasticity

130

GPA

Surface roughness

17.6

um



Mechanical Properties of C7025


state

Hardness/HV

Tensile strength /MPa

Yield strength /MPa

Elongation/A50%

TM00

180-200.

580-650.

P 500

11 or higher

TM02

190-220.

650-730.

P 580

7 or higher

TM03

210-240.

670-800.

P 645

5 or more

TM04

230-250.

740-840.

P 680

3 or higher



Bending Performance of C7025

state

90 ° R/T

Good Way

Bad Way

TM00

0

0

TM02

1

1

TM03

1.5

1.5

TM04

2

2


Copper-Nickel-Silicon Strip Production Process

Copper-Nickel-Silicon Strip Production Process
  • 01
    Raw materials
  • 02
    Horizontal continuous casting
  • 03
    Four-sided milling
  • 04
    Rough rolling mill
  • 05
    Thick Shear
  • 06
    Uniform hood annealing
  • 07
    Finishing mill
  • 08
    Pickling
  • 09
    Uniform hood annealing
  • 10
    Minor finishing mill
  • 11
    German OTTO air cushion furnace
  • 12
    Stretching and straightening machine
  • 13
    Shear, Striping
  • 14
    Finished product packaging
  • 15
    Three-dimensional warehouse

Copper-Nickel-Silicon Strip Executive Standard

Reply: ASTM B422: 2010

Copper- nickel-silicon Strip Production Equipments

  • Germany Simark Mill Unit
    Germany Simark Mill Unit
  • Mino Mill
    Mino Mill
  • Germany WSP Continuous Air Cushion
    Germany WSP Continuous Air Cushion
  • Annealing Furnace Bending and Straightening Production Line
    Annealing Furnace Bending and Straightening Production Line
  • Pickling Line
    Pickling Line
  • Packaging Unit
    Packaging Unit
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